22 lines
735 B
Mathematica
22 lines
735 B
Mathematica
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// Source: http://stackoverflow.com/a/3732812/1123156
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#import "UIView+FindUIViewController.h"
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@implementation UIView (FindUIViewController)
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- (UIViewController *) firstAvailableUIViewController {
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// convenience function for casting and to "mask" the recursive function
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return (UIViewController *)[self traverseResponderChainForUIViewController];
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}
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- (id) traverseResponderChainForUIViewController {
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id nextResponder = [self nextResponder];
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if ([nextResponder isKindOfClass:[UIViewController class]]) {
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return nextResponder;
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} else if ([nextResponder isKindOfClass:[UIView class]]) {
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return [nextResponder traverseResponderChainForUIViewController];
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} else {
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return nil;
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}
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}
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@end
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